HW4 in process

hw4/js/main.js

@@ -144,7 +144,7 @@
 
 // else {
 //   for (let i = 0; i < n; i++){
-//     if (i+1) {
+//     if (i%2) {
 //       str += "#"
 //     }
 //     else { str += " "}
@@ -161,4 +161,100 @@
 //   }
 //   str +="\n"
 // }
-// alert (str)
+// alert (str)
+
+//12task
+
+// let str = "";
+// let y = +prompt ("Введите число символов в строке")
+// if (y<0){
+//     alert ("sho etpo")
+// }
+// let x = +prompt ("Введите число символов в строке")
+// if (x<0){
+//     alert ("sho eto?")
+// }
+// else{
+// for (let i =0; i<y;i++){
+//   for (let a=0;a<x;a++){
+//       if (i%2) {
+//           if (a%2){
+//               str += "."
+//           }
+//           else {
+//               str += "#"
+//           }
+//       }
+//       else if (a%2){
+//           str +="#"
+//       }
+//       else {
+//           str+="."
+//       }
+//   }
+//   str += "\n"
+// }
+// alert (str)
+// }
+//13task
+
+// var arr = []
+// let n = +prompt("Enter a number")
+// if (n<0) {
+//     alert ("shoto ne to")
+// }
+// else{
+//     for (let i = 0; i<n;i++)
+//     arr [i] = i**3 + "\n";
+// } 
+// alert (arr.valueOf())
+
+//14task
+
+// var arr = [];
+// for (let i = 0; i <= 10; i++){
+//     arr[i] = [];
+//     if (0 === i) {
+//         for (let j = 0; j <= 10; j++){
+//             arr[i][j] = j;
+//         }
+//     }
+//     else {
+//         for (let j = 0; j <= 10; j++){
+//             if (0 === j) {arr[i][j] = i}
+//             else {arr[i][j] = i*j}
+//         }
+//     }
+// }
+// alert(arr.valueOf())
+
+ //15task
+
+ //neponyal
+
+ //16task
+
+//  var str = "";
+//  var n = 11;
+
+//  if (n=11) {
+//      for (let i = 0; i<(Math.floor(n/2)+1); i++){
+//          let j = 0
+//          for (; j < (n - (n % 2 + i*2))/2; j++){
+//              str += " . ";
+//          };
+//          for (; j < (n + (n % 2 + i*2))/2; j++){
+//              str += "#";
+//          };
+//          for (; j < n; j++){
+//              str += " . ";
+//          };
+//          str += "\n"
+//      }
+//      alert(str);
+//  }
+
+//17task
+
+
+